The book does not hit stores until Oct. 29, but Hart shared some of the details of the work with Life & Style this week. The former Nickelodeon star of Clarissa Explains It All revealed she experimented with some drugs in the past, including weed, Ecstasy, mushrooms and mescaline. At one point, she was even reportedly offered cocaine from Paris Hilton, though Hart turned it down. Hilton's reps have denied that part of the story.
In 1999, Melissa Joan Hart took Ecstasy at the Playboy Mansion and then made out with another girl in a limousine. She even took part in a Maxim photo shoot while still high on the drug. Thankfully, this drug use never became a full-blown addiction.
"I was kind of running with a bad crowd," Melissa Joan Hart said. "I just didn't enjoy taking drugs. I don't like the loss of control."
There are plenty of other juicy tidbits in Melissa Joan Hart's book. She also discusses her make-out sessions with Jerry O'Connell, Ryan Reynolds and Backstreet Boy Nick Carter.
But there was one person Melissa Joan Hart had no desire to hook up with. The actress feuded with Ashton Kutcher and twice attempted to kick him out of her parties after he made "smart*ss remarks."
After starring in two beloved teen sitcoms, Melissa Joan Hart settled down with husband Mark Wilkerson. The couple has three boys together: 7-year-old Mason, 5-year-old Brady and 1-year-old Tucker.
"I went out a lot because I was trying to fill a void — once I met Mark, I didn't need to go out anymore" Hart said.
"I couldn't stay in character!" Hart told PEOPLE. "I was watching him like a hawk and forgetting to react as my character would to the situation. It was unnerving. But it was so fun to have him there."
Check out video below of Melissa Joan Hart in Clarissa Explains It All.